'progovernmental' originates from Modern English, formed by the prefix 'pro-' (from Latin 'pro' meaning 'for') combined with 'governmental' (from 'government' + the adjective suffix '-al').

'Government' entered English via Old French 'governement' (or 'governer') from Latin 'gubernare' meaning 'to steer' or 'to guide'; over time this developed into Middle English 'governaunce/government' and eventually the modern English 'government', to which the suffix '-al' was added to form 'governmental', and the prefix 'pro-' was attached to form 'progovernmental'.

Originally related to 'steering' or 'guiding' (Latin 'gubernare'); the sense shifted to 'exercise of authority or rule' (government). Adding 'pro-' created the present meaning 'in favor of the government'.